SysBase = function(){
    return {
        isBlank:function(value){
            return (value == null || value == undefined || Ext.String.trim(value) === '')
        },
        isNotBlank:function(value){
            return !this.isBlank(value);
        },

        isFloat:function(value){
            var regex = /^(0|([1-9]\d*))(\.\d+)?$/;
            return regex.test(value);
        }

    };
}();